Hi Neil,
My comments inline below:
[EMAIL PROTECTED] wrote:
>
> Hi Vivek,
>
> The most obvious way to get what you want--which I presume is just a
> xercesImpl.jar--is to use our "jar" build target. Then you'll get one
> jarfile which you can use in conjunction with xml-apis.jar if you like.
>
Yes xercesImpl.jar serves the purpose for runtime. I mean it can resolve
references from xml-commons jar files at runtime. And this can be
problem and may result in bugs because its compiled with its own
sax/dom/jaxp-api.
> We're definitely aware of the fact that there's much API duplication
> between ourselves and commons (DOM and SAX are also duplicated, and in the
> SAX case at least the delta is significant). But there are a few
> constraints we're under:
>
> - There are people who want to use us in J2SE 1.4 implementations or in
> J2EE 2.0 implementations. But to be conformant we have to support a very
> precise set of features in our API's--and unfortunately the commons code
> doesn't comply. (So far as I know this is only relevant to SAX, where
> commons SAXException has different signatures from ours).
>
sax issue should be resolved to make either one compatible with the
spec. I have not compared SAXException signature differences. I would
look in to that and also see what spec say.
> - We neither implement nor use the transform part of the JAXP API.
> Therefore, it's not only unnecessary but positively misleading for us to
> ship it. From this vantage point, xml-apis.jar looks very sensible as a
> standard for XSLT engines but not for parsers...
>
But duplication of code is also not good.
> Obviously, work needs to be done to sort this stuff out. But that's the
> situation as it stands today.
I see your point and am thinking what can be done to remove this
incompatibility. One of the thing which can be done is to move xerces
sa/dom/jaxp dependencies to xml-commons. So that we have clear
distinction between apis and implementation.
thanks,
-vivek.
>
> Hope that helps,
> Neil
> Neil Graham
> XML Parser Development
> IBM Toronto Lab
> Phone: 905-413-3519, T/L 969-3519
> E-mail: [EMAIL PROTECTED]
>
>
> Vivek Pandey
> <vivek.pandey@ To: [EMAIL PROTECTED]
> sun.com> cc: Vivek Pandey <[EMAIL PROTECTED]>
> Subject: Building xercesImpl.jar from
>xml-common
> 04/04/2002
> 07:55 PM
> Please respond
> to
> xerces-j-dev
>
>
>
> xerces has xml-api (javax) sources and compiles them and references them
> in the build.
>
> I am trying to compile xerces with xml-commons jars. The only way i am
> able to do is by changing xml-xerces/java/build.xml (to compile only for
> target 'org' excluding 'javax') file.
>
> Below is the diff of xml-xerces/java/build.xml, introduced new target
> compile.xerces, which compiles src/org. This means i can set a classpath
> pointing to xml-common jars so that it resolves xmlapi related
> references from it. Everything looks fine with this change.
>
> There can be better way of doing it:
>
> -include xml-api.jar file in xml-xerces/tools.
> -Remove javax sources or do not compile them.
> -add a path id or property to refer to xmlapi.jar file. This
> path id can be overridden from the other build file which invokes this
> build.
>
> I think xerces/java/build.xml should be modified to take xml-api.jar
> from xml-commons instead of from native source. Because xerces native
> javax package can be out of sync with xml-commons javax package.
>
> Does anyone know can help how to fix this.
>
> thanks,
>
> -vivek.
>
> --------------------
> Index: build.xml
> ===================================================================
> RCS file: /home/cvspublic/xml-xerces/java/build.xml,v
> retrieving revision 1.74
> diff -c -w -r1.74 build.xml
> *** build.xml 4 Mar 2002 12:35:42 -0000 1.74
> --- build.xml 5 Apr 2002 00:04:49 -0000
> ***************
> *** 182,187 ****
> --- 182,207 ----
> </target>
>
> <!--
> =================================================================== -->
> + <!-- Compile xerces source and use external
> jaxp-api
> -->
> + <!--
> =================================================================== -->
> + <target name="compile.xerces" depends="prepare-src">
> + <copy todir="${build.dest}">
> + <fileset dir="${build.src}"
> + includes="**/*.res, **/*.properties">
> + </fileset>
> + </copy>
> +
> + <javac srcdir="${build.src}/org"
> + excludes="**/RevalidatingDOMParser.java"
> + destdir="${build.dest}"
> + debug="${debug}"
> + deprecation="${deprecation}"
> + optimize="${optimize}"
> + includeAntRuntime="true"
> + includeJavaRuntime="true"/>
> + </target>
> +
>
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